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介绍了水性涂料用助剂的作用和效果,对比分析了不同类型水性助剂的性能及其适用范围,明确了水性涂料用助剂的选用原则:针对不同涂料品种,综合考虑分散介质的性质和颜料表面的状态及特性、助剂间的相互作用、助剂与水性涂料各组分间的相互作用与制约,通过试验比较确定适宜的助剂品种及添加量,保持参与匹配助剂的本质特性和涂料体系的稳定性是助剂选用的前提。 相似文献
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《涂料技术与文摘》1999,(1)
”01408稀释增稠·溶剂型和无溶剂型涂料用断型液体流变助剂〔刊,英〕/H司as,Janos//而ntindia.‘1997,47(10)一X IX、XX、X Xl、X X 11 开发了一种基于改性脉的新型液体流变助剂,用以解决溶剂型和无溶剂型涂料的流变问题。它的增稠机理可用改性脉的选择不相溶性来说明,这导致了微细、针状粒子显示强内聚相互作用的可控制分离,这种相互作用最终可形成提高流变性能的三维网络。与一般助剂的使用结果相比,其在不同极性的涂料配方中也具有防沉积和控制流挂的作用。含有该改性脉增稠剂的配方显示了非常强的剪切变稀效应和高触变值。讨论了… 相似文献
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纳米TiO_2光触媒乳胶涂料的研究 总被引:1,自引:0,他引:1
采用纳米TiO2作为主要组分,通过其与其他组分之间相互作用而制得纳米TiO2光触媒乳胶涂料,通过检测其一系列性能(普通性能和光触媒净化性能),由此得出纳米TiO2光触媒乳胶涂料具有环保优良特性的结论。 相似文献
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有机硅树脂涂料拥有着多种优良性能,尤其是改性后的涂料更能够满足建筑装饰装修的要求。基于此情况下,本文主要对改性有机硅树脂涂料的制备进行了全方位分析,同时重点对改性有机硅树脂涂料的性质及应用作出深入探讨,使其整体性能得到最大程度发挥。 相似文献
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序言涂料是工业材料中最复杂的物质之一。由包括构成涂料的无机化合,有机化合物的特性及相互作用,以及与作为涂装底材的金属、木材塑料的相互作用等,几乎是无限的因数所构成。这些可根据过去的经验规则继续好好利用,在严酷条件下使用及随着种种的性能要求,仍按 相似文献
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The addition of surfactants to modify the surface property of nanoparticles (NPs) from hydrophilic to hydrophobic also enhances their interfacial properties. Several approaches were previously proposed to calculate the surface tension/interfacial tension (IFT) for different systems in the presence of NPs, surfactants, and electrolytes. However, most of these approaches are indirect and require several measured parameters. Therefore, a mathematical model is developed here to calculate the surface tension/IFT for these systems. The developed model takes into account the cohesive energy due to the interaction of the surfactant CH2 groups, the electric double layer effect due to the interaction among the ions of NPs, surfactants, and electrolytes, and the dipole–dipole interaction of NPs and electrolytes. The developed model is compared and validated with the laboratory experimental data in literature. The results reveal further understanding of the mechanisms involved in stabilization of oil/water emulsion in the presence of NPs, surfactants, and electrolytes. 相似文献
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Connection of surface tension with multiple tribological properties in epoxy + fluoropolymer systems
Witold Brostow Patrick E Cassidy Javier Macossay Dorota Pietkiewicz Sreenu Venumbaka 《Polymer International》2003,52(9):1498-1505
Contact angles of free liquids on solid samples were measured and the van Oss–Good method was applied for evaluating surface tensions of the solids. A parachor method was used for comparison: in this case the respective values were calculated for the polymer solids from molecular and group contributions. Surface tensions were computed from the parachors and the two methods compared. Effects of varying the fluoropolymer added to the epoxy before curing are discussed. For a given fluoropolymer, effects of changing its concentration on surface tension have also been evaluated and compared to the changes in scratch resistance (scratch penetration depth, recovery depth) and in static and dynamic friction. Morphological and phase structure changes are reflected in all these properties, showing a strong connection between the surface tension and tribological properties. Copyright © 2003 Society of Chemical Industry 相似文献
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To predict the surface tension of binary liquid systems, an empirical model is proposed using the partial least squares (PLS)
based on the multivariate statistical analysis method. Required parameters for the PLS method to predict the surface tension
of binary systems are composed of the thermophysical properties of only pure substances such as critical temperature, critical
pressure, critical volume, molar volume, viscosity and vapor pressure for input data block (X) and the reported experimental
surface tension data for output data block (Y). The data set for the experimental surface tension of binary liquid systems
is divided into the training set for regression and the test set for predicting. An average relative error (%) results of
regression and prediction indicate that the PLS method can be a useful tool for predicting the surface tension of liquid binary
systems. 相似文献